Folding fiber-board carton.



J. K. P. BINGAMAN.

FOLDING FIBER BOARD CARTON.

APPLICATION FILED JULY 13, I915.

1,150,4 9 1'. v Patented Aug. 17, 1915.

To all whom it may concern NT we.

JAMES K. P. BINGAMAN, or cINoINNA'rr, OHIO.

FOLDING- FIBER-BOARD CARTON.

Be it known thatI, JAMES K. I BINGA- MAN, a'citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Folding Fiber- Board Cartons, of which the following is a specification.

This invention relates to certain new and useful improvements in folding fiber board cartons and has special reference to a lock for holding the difl'erent portions of such cartons in their set up position, the

cartons being of the knock-down type which are shipped and stored. in a fiat condition and are then folded for the reception of articles.

More particularly the invention relates to a lock which is adapted for use with cartons inade from any thickness or character or fiber board or other material so that the very thinnest material or board may be used,

as for the packaging of laces and the like in stores or a heavy corrugated board may be used as for the shipment by parcels post or express'of such articles as shoes, or hard- I ware, the corrugated board, when used, be-

ing especially adapted for the shipment of fragile articles such as eggs and the like.

Theprincipal object of the invention is .the provision of an improved form of lock of the above description, whichwill not re quire the bendingor distortion of the tongue '3' employed and which yet will provide a safe I 5 and secure look not liable to open up during transportation, the lock being of such characterthat any thickness of board or other material may be employed and the inter- With, these. general objectsiin view and others that will appear as the nature of the invention v is betterfiunderstood, the same consistsnin' the novelcombination and arrangement of parts hereinafter more fully locking'of the-parts being effected by a spe 'cies of rotary motion.

described, illustrated in theaccompanying drawings, and pointed out in the appended I clalms.

In the drawings forming a part of this "application and" in which likedesignating characters refer to corresponding parts throughout the several views, Figure l is a view of a portion of' a'blank for forming a folding box constructed in accordance with this invention. Fig.2 is a view of-two of the parts shown in Fig. linterlocked. Fig.

I Specification of Letters Patent;

Patented Aug. 17, 1915.

Application filed July 13, 1915. Serial No. 39,668.

In the embodiment of the invention. illustrated in Fig. 1 there is disclosed a box having a bottom A, sides B, end C and end flaps D. The bottom A isdefined from the sides B b fold scores or creases 10 and from the end flaps D being defined from said end by similar fold scores or creases 12. Each of the sides B is provided-with a pair of slots one of which in the form shown in Figs. 1 and 2 is arcuate as indicated at 13 while the other is: reversely curved as indicated at 13 with the major portionof the curve substantially concentric to the first slot, both terminating in substantially circular openings "14..

In the modification illustrated in Fig. 5, the flap D is provided with a blunt rounded arrow-head tongue 21 defin'ed from the flap by a fold score or crease 11, the

by tapering slots 22 terminating in substanangularly disposed and then} twisting slots slightly depressed so that the remaining side of the tongue slips into the remaining slot whereupon thetwo parts B and D are brought into'alinement as illustrated in Figs. 2, and the rounded neck of the tongue brought into position to coact with the rounded ends of theslots. .It will be observed that where the'modification shown in Fig. 5 is used, the openings 23 cooperate with the openings at the ends of the slots and .that these openings, in each instance, tend to prevent tearing of the. tongue from its flap or tearing'of the slots. when assembled and the parts Moreover, D are at right-angles to the parts C there can he no.

possibility of accidental unlocking. V

It is to be noted that in order to aflect-this the slits are made somewhat longer than" these parts of the tongue wherewith they engage when the latter is in locked this being clearly observable in Figs. 2 and 3.

While the form of the invention herein 1 shown and described is. What is believed to be the preferred embodiment thereof, it is nevertheless to be understood that minor changes may be made therein without departing fromthe spirit and scope of the in vention as claimed.

It is obvious that the carton mav be position,

water-'proofe'd by paraifin or other material either inside oroutside as may be desired.

What I claim as new is 1. In a box lockfor cartonpar-ts, a part having apair of spaced slots, one of the slots being/arcuate and the other reversely curved, the major portions of the slots hav- .ing substantially coincident centers, and a having a pair of spaced slots, one of the slots being arcuate and the other reversely curved,

the major portions of the slots having substantially coincident centers, and a second cooperating part having a headprovided with a neck and adapted to engage the receiving slots by swinging movement, the slots and neck having cooperating enlargements. In testimony whereof I aflix my signature.

JAMES K. 'P. BINGAMAN. 

